/* * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8159337 * @summary Test Locale.caseFoldLanguageTag(String languageTag) * @run junit CaseFoldLanguageTagTest */ import org.junit.jupiter.api.AfterAll; import org.junit.jupiter.api.Test; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertThrows; import org.junit.jupiter.params.ParameterizedTest; import org.junit.jupiter.params.provider.Arguments; import org.junit.jupiter.params.provider.MethodSource; import java.util.IllformedLocaleException; import java.util.Locale; import java.util.stream.Stream; /** * Test the implementation of Locale.caseFoldLanguageTag(String languageTag). * A variety of well-formed tags are tested, composed of the following subtags: * language, extlang, script, region, variant, extension, singleton, privateuse, * grandfathered, and irregular. For more info, see the following, * Tag Syntax). * In addition, the method is tested to ensure that IllformedLocaleException and * NullPointerException are thrown given the right circumstances. */ public class CaseFoldLanguageTagTest { @ParameterizedTest @MethodSource("wellFormedTags") public void wellFormedTags(String tag, String foldedTag) { assertEquals(foldedTag, Locale.caseFoldLanguageTag(tag), String.format("Folded %s", tag)); } @ParameterizedTest @MethodSource("illFormedTags") public void illFormedTags(String tag) { assertThrows(IllformedLocaleException.class, () -> Locale.caseFoldLanguageTag(tag)); } @Test public void throwNPE() { assertThrows(NullPointerException.class, () -> Locale.caseFoldLanguageTag(null)); } private static Stream wellFormedTags() { return Stream.of( // langtag tests // language Arguments.of("AB", "ab"), // language - ext Arguments.of("AB-ABC", "ab-abc"), // language - ext - script Arguments.of("AB-ABC-ABCD", "ab-abc-Abcd"), // language - ext - script - region Arguments.of("AB-ABC-ABCD-ab", "ab-abc-Abcd-AB"), // language - region Arguments.of("AB-ab", "ab-AB"), // language - script Arguments.of("AB-aBCD", "ab-Abcd"), // language - private use Arguments.of("AB-X-AB-ABCD", "ab-x-ab-abcd"), // language - ext - script - region - variant Arguments.of("AB-ABC-ABCD-ab-ABCDE", "ab-abc-Abcd-AB-ABCDE"), // language - ext - script - region - variant x 2 Arguments.of("AB-ABC-ABCD-ab-ABCDE-fghij", "ab-abc-Abcd-AB-ABCDE-fghij"), // language - ext - script - region - variant - extension Arguments.of("AB-ABC-ABCD-ab-ABCDE-A-ABCD", "ab-abc-Abcd-AB-ABCDE-a-abcd"), // language - ext - script - region - variant - private Arguments.of("AB-ABC-ABCD-ab-ABCDE-X-ABCD", "ab-abc-Abcd-AB-ABCDE-x-abcd"), // language - ext - script - region - variant - extension x2 Arguments.of("AB-ABC-ABCD-ab-ABCDE-A-ABCD-B-EFGHI", "ab-abc-Abcd-AB-ABCDE-a-abcd-b-efghi"), // language - ext - script - region - variant - extension - private Arguments.of("AB-ABC-ABCD-ab-ABCDE-A-ABCD-X-ABCD", "ab-abc-Abcd-AB-ABCDE-a-abcd-x-abcd"), // language - ext - script - region - variant x2 - extension x2 - private (x2 ext) Arguments.of("AB-ABC-ABCD-ab-ABCDE-A-ABCD-X-ABCD-EFGHI", "ab-abc-Abcd-AB-ABCDE-a-abcd-x-abcd-efghi"), // language - variant x2 - extension x3 - private Arguments.of("AB-aBcDeF-GhIjKl-a-ABC-DEFGH-B-ABC-C-ABC-X-A-ABC-DEF", "ab-aBcDeF-GhIjKl-a-abc-defgh-b-abc-c-abc-x-a-abc-def"), // language - ext- script - region - variant - extension x2 - private (x2 ext) Arguments.of("AB-ABC-ABCD-ab-abCDe12-A-AB-B-ABCD-X-AB-ABCD", "ab-abc-Abcd-AB-abCDe12-a-ab-b-abcd-x-ab-abcd"), // Multiple singleton extensions Arguments.of("AB-ABC-ABCD-ab-ABCDE-A-ABCD-GGG-ZZZ-B-EFGHI", "ab-abc-Abcd-AB-ABCDE-a-abcd-ggg-zzz-b-efghi"), // private use tests Arguments.of("X-Abc", "x-abc"), // regular private Arguments.of("X-A-ABC", "x-a-abc"), // private w/ extended (incl. 1) Arguments.of("X-A-AB-Abcd", "x-a-ab-abcd"), // private w/ extended (incl. 1, 2, 4) // Legacy tests // irregular Arguments.of("I-AMI", "i-ami"), Arguments.of("EN-gb-OED", "en-GB-oed"), Arguments.of("SGN-be-fr", "sgn-BE-FR"), // regular Arguments.of("NO-BOK", "no-bok"), Arguments.of("CEL-GAULISH", "cel-gaulish"), Arguments.of("ZH-MIN-NAN", "zh-min-nan"), // Special JDK Cases (Variant and x-lvariant) Arguments.of("de-POSIX-x-URP-lvariant-Abc-Def", "de-POSIX-x-urp-lvariant-Abc-Def"), Arguments.of("JA-JPAN-JP-U-CA-JAPANESE-x-RANDOM-lvariant-JP", "ja-Jpan-JP-u-ca-japanese-x-random-lvariant-JP"), Arguments.of("ja-JP-u-ca-japanese-x-lvariant-JP", "ja-JP-u-ca-japanese-x-lvariant-JP"), Arguments.of("XX-ABCD-yy-VARIANT-x-TEST-lvariant-JDK", "xx-Abcd-YY-VARIANT-x-test-lvariant-JDK"), Arguments.of("ja-kana-jp-x-lvariant-Oracle-JDK-Standard-Edition", "ja-Kana-JP-x-lvariant-Oracle-JDK-Standard-Edition"), Arguments.of("ja-kana-jp-x-Oracle-JDK-Standard-Edition", "ja-Kana-JP-x-oracle-jdk-standard-edition"), Arguments.of("ja-kana-jp-a-ABC-EFG-ZZZ-b-aaa-x-Oracle-JDK-Standard-Edition", "ja-Kana-JP-a-abc-efg-zzz-b-aaa-x-oracle-jdk-standard-edition") ); } private static Stream illFormedTags() { return Stream.of( // Starts with non-language Arguments.of("xabadadoo-me"), // Starts with singleton Arguments.of("a-abc"), Arguments.of("a-singleton-en-us"), // Hanging dash Arguments.of("en-"), // Double dash Arguments.of("en--US"), // Script before ext lang Arguments.of("ab-Script-ext"), // Region before ext lang Arguments.of("ab-AB-ext"), // Variants at start Arguments.of("variant-first-ab") ); } }